After following the ongoing debate over canned soups- I realized that I couldn't comment because I have never made any casserole type dishes involving cream of mushroom soup because they are all dairy and for religious reasons, we don't mix meat and milk. So I created this substitute, which is really authentic... I will weigh in on the debate after tonight's dinner!
Isa Chandra Mosckowitz and Terry Hope Romero are the queens of keen vegan cooking. Their mac & cheese recipe is a kid pleaser and a big dose of down home comfort for all ages. If you don't own Veganomicon, find a copy and you'll see why you should.
Don't be put off by the amount of cooking time (I've quoted the longest time). It is well worth the wait and develops the flavour better with the long cooking. This recipe is adapted slightly from the original which was found at Just Slow Cooking.com.
A healthy, gluten-free cake flour mix. Substitute it for regular flour cup-for-cup in cake recipes and other baked goods (but not bread, which needs a different mixture). The ingredients are easily purchased online or in most healthfood stores.